Naoko is Inori's mother and the assistant in her husband's clinic. She has fair skin and shares her daughter's big, golden-brown eyes. Her thick wavy hair is brown and chest length, with her bangs and forelocks combined and tented, worn over her shoulders. When working she pulls the remainder of hair into a low ponytail. Her casual attire alters between her doctors uniform, and a yellow sweater worn with a long white skirt. Naoko is very compassionate towards the animals they taken care of.